Not sure if I'm exactly proud of this
but I'm responsible for that manly Cortana footage still. It was thought lost to the sands of time, but I had it saved on my local work machine since I tried showing it during our PAX Prime panel in 2012.
The cinematic team used a facial scan of one of our designers to show how powerful our new animation blending tools were. The reaction of the team when that was shown in the studio for the first time was amazing. It started with just pure revulsion and slowly morphed into a "maybe I would take this fine digital being out to dinner some time."